Yea, also notice how in the Glass wearing video the technician brings up the tools he needs and sets them on the floor whereas in the other video he sets each tool back and forth.
Could it be that the glasses also tell you which tools you'll need, allowing you to plan ahead, whereas the alternative is to fetch a tool when you need it?
Generally when you're doing shit like this you read the destructions first and grab the tools. That is if your destructions are good and actually list them and sizes which most aren't... Which wouldn't help if it was or wasn't in glass, that's a content problem not a form factor issue. I will say I'd rather bring these hardened devices in than get oil on my smart phone which is what I did last week.
I do like sticking my smart phone in holes to take photos there I can't otherwise get.
Pretty lame comparison.